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testing

This commit is contained in:
Connor McLaughlin 2022-08-01 19:32:33 +10:00
parent 571a773b29
commit c883779595
2 changed files with 112 additions and 63 deletions
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169
src/core/cdrom.cpp
View File

@ -704,9 +704,6 @@ void CDROM::DeliverAsyncInterrupt()
Assert(m_pending_async_interrupt != 0 && !HasPendingInterrupt());
Log_DebugPrintf("Delivering async interrupt %u", m_pending_async_interrupt);
if (m_pending_async_interrupt == static_cast<u8>(Interrupt::DataReady))
m_current_read_sector_buffer = m_current_write_sector_buffer;
m_response_fifo.Clear();
m_response_fifo.PushFromQueue(&m_async_response_fifo);
m_interrupt_flag_register = m_pending_async_interrupt;
@ -1812,8 +1809,11 @@ void CDROM::BeginReading(TickCount ticks_late /* = 0 */, bool after_seek /* = fa
m_drive_state = DriveState::Reading;
m_drive_event->SetInterval(ticks);
m_drive_event->Schedule(first_sector_ticks);
m_current_read_sector_buffer = 0;
m_current_read_sector_buffer = NUM_SECTOR_BUFFERS - 1;
m_current_write_sector_buffer = 0;
m_deliver_sector_buffer = 0;
m_buffered_sector_count = 0;
m_buffered_sectors_remaining = NUM_SECTORS_TO_BUFFER;
m_requested_lba = m_current_lba;
m_reader.QueueReadSector(m_requested_lba);
@ -1855,8 +1855,11 @@ void CDROM::BeginPlaying(u8 track, TickCount ticks_late /* = 0 */, bool after_se
m_drive_state = DriveState::Playing;
m_drive_event->SetInterval(ticks);
m_drive_event->Schedule(first_sector_ticks);
m_current_read_sector_buffer = 0;
m_current_read_sector_buffer = NUM_SECTOR_BUFFERS - 1;
m_current_write_sector_buffer = 0;
m_deliver_sector_buffer = 0;
m_buffered_sector_count = 0;
m_buffered_sectors_remaining = NUM_SECTORS_TO_BUFFER;
m_requested_lba = m_current_lba;
m_reader.QueueReadSector(m_requested_lba);
@ -2066,9 +2069,9 @@ bool CDROM::CompleteSeek()
{
if (logical)
{
ProcessDataSectorHeader(m_reader.GetSectorBuffer().data());
seek_okay = (m_last_sector_header.minute == seek_mm && m_last_sector_header.second == seek_ss &&
m_last_sector_header.frame == seek_ff);
const CDImage::SectorHeader* header =
reinterpret_cast<const CDImage::SectorHeader*>(m_reader.GetSectorBuffer().data() + SECTOR_SYNC_SIZE);
seek_okay = (header->minute == seek_mm && header->second == seek_ss && header->frame == seek_ff);
}
}
else
@ -2320,15 +2323,11 @@ void CDROM::DoSectorRead()
return;
}
}
else
{
ProcessDataSectorHeader(m_reader.GetSectorBuffer().data());
}
u32 next_sector = m_current_lba + 1u;
if (is_data_sector && m_drive_state == DriveState::Reading)
{
ProcessDataSector(m_reader.GetSectorBuffer().data(), subq);
EnqueueDataSector(m_reader.GetSectorBuffer().data());
}
else if (!is_data_sector &&
(m_drive_state == DriveState::Playing || (m_drive_state == DriveState::Reading && m_mode.cdda)))
@ -2348,6 +2347,8 @@ void CDROM::DoSectorRead()
is_data_sector ? "data" : "audio", is_data_sector ? "reading" : "playing");
}
ProcessDataSector();
m_requested_lba = next_sector;
m_reader.QueueReadSector(m_requested_lba);
}
@ -2355,59 +2356,87 @@ void CDROM::DoSectorRead()
void CDROM::ProcessDataSectorHeader(const u8* raw_sector)
{
std::memcpy(&m_last_sector_header, &raw_sector[SECTOR_SYNC_SIZE], sizeof(m_last_sector_header));
std::memcpy(&m_last_sector_subheader, &raw_sector[SECTOR_SYNC_SIZE + sizeof(m_last_sector_header)],
sizeof(m_last_sector_subheader));
std::memcpy(&m_last_sector_subheader, &raw_sector[SECTOR_SYNC_SIZE + sizeof(m_last_sector_header)], sizeof(m_last_sector_subheader));
m_last_sector_header_valid = true;
}
void CDROM::ProcessDataSector(const u8* raw_sector, const CDImage::SubChannelQ& subq)
void CDROM::EnqueueDataSector(const u8* raw_sector)
{
const u32 sb_num = (m_current_write_sector_buffer + 1) % NUM_SECTOR_BUFFERS;
Log_DevPrintf("Read sector %u: mode %u submode 0x%02X into buffer %u", m_current_lba,
ZeroExtend32(m_last_sector_header.sector_mode), ZeroExtend32(m_last_sector_subheader.submode.bits),
sb_num);
if (m_mode.xa_enable && m_last_sector_header.sector_mode == 2)
{
if (m_last_sector_subheader.submode.realtime && m_last_sector_subheader.submode.audio)
{
ProcessXAADPCMSector(raw_sector, subq);
// Audio+realtime sectors aren't delivered to the CPU.
return;
}
}
// TODO: How does XA relate to this buffering?
SectorBuffer* sb = &m_sector_buffers[sb_num];
if (sb->size > 0)
{
Log_DevPrintf("Sector buffer %u was not read, previous sector dropped",
(m_current_write_sector_buffer - 1) % NUM_SECTOR_BUFFERS);
}
if (m_mode.ignore_bit)
Log_WarningPrintf("SetMode.4 bit set on read of sector %u", m_current_lba);
if (m_mode.read_raw_sector)
{
std::memcpy(sb->data.data(), raw_sector + SECTOR_SYNC_SIZE, RAW_SECTOR_OUTPUT_SIZE);
sb->size = RAW_SECTOR_OUTPUT_SIZE;
}
else
{
// TODO: This should actually depend on the mode...
if (m_last_sector_header.sector_mode != 2)
const CDImage::SectorHeader* header =
reinterpret_cast<const CDImage::SectorHeader*>(m_reader.GetSectorBuffer().data() + SECTOR_SYNC_SIZE);
const CDXA::XASubHeader* subheader = reinterpret_cast<const CDXA::XASubHeader*>(
m_reader.GetSectorBuffer().data() + SECTOR_SYNC_SIZE + sizeof(CDImage::SectorHeader));
if (header->sector_mode != 2)
{
Log_WarningPrintf("Ignoring non-mode2 sector at %u", m_current_lba);
return;
}
std::memcpy(sb->data.data(), raw_sector + CDImage::SECTOR_SYNC_SIZE + 12, DATA_SECTOR_OUTPUT_SIZE);
sb->size = DATA_SECTOR_OUTPUT_SIZE;
if (m_mode.ignore_bit)
Log_WarningPrintf("SetMode.4 bit set on read of sector %u", m_current_lba);
const u32 sb_num = m_current_write_sector_buffer;
m_current_write_sector_buffer = (m_current_write_sector_buffer + 1) % NUM_SECTOR_BUFFERS;
Log_DevPrintf("Enqueue data sector %u: %02X:%02X:%02X mode %u submode 0x%02X into buffer %u", m_current_lba,
ZeroExtend32(header->minute), ZeroExtend32(header->second), ZeroExtend32(header->frame),
ZeroExtend32(header->sector_mode), ZeroExtend32(subheader->submode.bits), sb_num);
SectorBuffer* sb = &m_sector_buffers[sb_num];
if (sb->size > 0)
Log_DevPrintf("Sector buffer %u was not read, previous sector dropped", m_current_write_sector_buffer);
std::memcpy(sb->data.data(), raw_sector, CDImage::RAW_SECTOR_SIZE);
sb->size = CDImage::RAW_SECTOR_SIZE;
m_buffered_sector_count++;
Log_DevPrintf("[%u] %u sectors buffered...", m_current_lba, m_buffered_sector_count);
}
void CDROM::ProcessDataSector()
{
// Wait until we have at least two sectors buffered before we process any.
// This simulates the delay between subq and data present on the hardware, where it's doing ECC and other processing.
if (m_buffered_sectors_remaining > 0 && (m_buffered_sectors_remaining--) > 0)
{
Log_DebugPrintf("Only %u sectors buffered, waiting...", m_buffered_sector_count);
return;
}
m_current_write_sector_buffer = sb_num;
// Anything to process?
if (m_buffered_sector_count == 0)
return;
// Add a delay for the next sector if we're not full
m_buffered_sector_count--;
if (m_buffered_sector_count < NUM_SECTORS_TO_BUFFER)
m_buffered_sectors_remaining++;
m_current_read_sector_buffer = (m_current_read_sector_buffer + 1) % NUM_SECTOR_BUFFERS;
const u32 sb_num = m_current_read_sector_buffer;
SectorBuffer* sb = &m_sector_buffers[sb_num];
if (sb->size == 0)
{
Log_WarningPrintf("Empty sector buffer %u?!", sb_num);
return;
}
// Read out and store header (for GetLocL).
ProcessDataSectorHeader(sb->data.data());
// Non-mode 2 sectors aren't buffered.
if (m_mode.xa_enable /*&& m_last_sector_header.sector_mode == 2*/)
{
if (m_last_sector_subheader.submode.realtime && m_last_sector_subheader.submode.audio)
{
ProcessXAADPCMSector(sb->data.data());
// Audio+realtime sectors aren't delivered to the CPU.
sb->size = 0;
return;
}
}
// Deliver to CPU
if (HasPendingAsyncInterrupt())
@ -2418,13 +2447,20 @@ void CDROM::ProcessDataSector(const u8* raw_sector, const CDImage::SubChannelQ&
if (HasPendingInterrupt())
{
const u32 sectors_missed = (m_current_write_sector_buffer - m_current_read_sector_buffer) % NUM_SECTOR_BUFFERS;
const u32 sectors_missed = (sb_num - m_deliver_sector_buffer) % NUM_SECTOR_BUFFERS;
if (sectors_missed > 1)
Log_WarningPrintf("Interrupt not processed in time, missed %u sectors", sectors_missed - 1);
}
else
{
// This sector is now ready for delivery.
Log_DevPrintf("Deliver sector %02X:%02X:%02X to CPU", ZeroExtend32(m_last_sector_header.minute),
ZeroExtend32(m_last_sector_header.second), ZeroExtend32(m_last_sector_header.frame));
m_deliver_sector_buffer = sb_num;
m_async_response_fifo.Push(m_secondary_status.bits);
SetAsyncInterrupt(Interrupt::DataReady);
}
}
static std::array<std::array<s16, 29>, 7> s_zigzag_table = {
@ -2531,7 +2567,7 @@ void CDROM::ResetAudioDecoder()
m_audio_fifo.Clear();
}
void CDROM::ProcessXAADPCMSector(const u8* raw_sector, const CDImage::SubChannelQ& subq)
void CDROM::ProcessXAADPCMSector(const u8* raw_sector)
{
// Check for automatic ADPCM filter.
if (m_mode.xa_filter && (m_last_sector_subheader.file_number != m_xa_filter_file_number ||
@ -2719,24 +2755,31 @@ void CDROM::LoadDataFIFO()
}
// any data to load?
SectorBuffer& sb = m_sector_buffers[m_current_read_sector_buffer];
SectorBuffer& sb = m_sector_buffers[m_deliver_sector_buffer];
if (sb.size == 0)
{
Log_WarningPrintf("Attempting to load empty sector buffer");
m_data_fifo.PushRange(sb.data.data(), RAW_SECTOR_OUTPUT_SIZE);
m_data_fifo.PushRange(sb.data.data() + SECTOR_SYNC_SIZE, RAW_SECTOR_OUTPUT_SIZE);
}
else
{
m_data_fifo.PushRange(sb.data.data(), sb.size);
if (m_mode.read_raw_sector)
m_data_fifo.PushRange(sb.data.data() + SECTOR_SYNC_SIZE, RAW_SECTOR_OUTPUT_SIZE);
else
m_data_fifo.PushRange(sb.data.data() + SECTOR_SYNC_SIZE + 12, DATA_SECTOR_OUTPUT_SIZE);
sb.size = 0;
}
Log_DebugPrintf("Loaded %u bytes to data FIFO from buffer %u", m_data_fifo.GetSize(), m_current_read_sector_buffer);
const CDImage::SectorHeader* header = reinterpret_cast<const CDImage::SectorHeader*>(sb.data.data() + SECTOR_SYNC_SIZE);
Log_DevPrintf("Loaded %u bytes to data FIFO from buffer %u [%02X:%02X:%02X]", m_data_fifo.GetSize(),
m_deliver_sector_buffer, header->minute, header->second, header->frame);
SectorBuffer& next_sb = m_sector_buffers[m_current_write_sector_buffer];
// FIXME
SectorBuffer& next_sb = m_sector_buffers[m_current_read_sector_buffer];
if (next_sb.size > 0)
{
Log_DevPrintf("Sending additional INT1 for missed sector in buffer %u", m_current_write_sector_buffer);
Log_DevPrintf("Sending additional INT1 for missed sector in buffer %u", m_current_read_sector_buffer);
m_deliver_sector_buffer = m_current_read_sector_buffer;
m_async_response_fifo.Push(m_secondary_status.bits);
SetAsyncInterrupt(Interrupt::DataReady);
}

14
src/core/cdrom.h
View File

@ -87,7 +87,9 @@ private:
MOTOR_ON_RESPONSE_TICKS = 400000,
MAX_FAST_FORWARD_RATE = 12,
FAST_FORWARD_RATE_STEP = 4
FAST_FORWARD_RATE_STEP = 4,
NUM_SECTORS_TO_BUFFER = 2
};
static constexpr u8 INTERRUPT_REGISTER_MASK = 0x1F;
@ -314,9 +316,10 @@ private:
void DoSpeedChangeOrImplicitTOCReadComplete();
void DoIDRead();
void DoSectorRead();
void EnqueueDataSector(const u8* raw_sector);
void ProcessDataSector();
void ProcessDataSectorHeader(const u8* raw_sector);
void ProcessDataSector(const u8* raw_sector, const CDImage::SubChannelQ& subq);
void ProcessXAADPCMSector(const u8* raw_sector, const CDImage::SubChannelQ& subq);
void ProcessXAADPCMSector(const u8* raw_sector);
void ProcessCDDASector(const u8* raw_sector, const CDImage::SubChannelQ& subq);
void StopReadingWithDataEnd();
void StartMotor();
@ -395,12 +398,15 @@ private:
struct SectorBuffer
{
HeapArray<u8, RAW_SECTOR_OUTPUT_SIZE> data;
HeapArray<u8, CDImage::RAW_SECTOR_SIZE> data;
u32 size;
};
u32 m_current_read_sector_buffer = 0;
u32 m_current_write_sector_buffer = 0;
u32 m_deliver_sector_buffer = 0;
u32 m_buffered_sector_count = 0;
u32 m_buffered_sectors_remaining = 0;
std::array<SectorBuffer, NUM_SECTOR_BUFFERS> m_sector_buffers;
CDROMAsyncReader m_reader;